<template>
    <div class="goodsinfo-container">
        <transition 
            @before-enter="beforeEnter"
            @enter="enter"
            @after-enter="afterEnter"
        >
                <div class="ball" v-show="ballFlag" ref="ball"></div>
        </transition>
        <!-- 商品轮播区域 -->
        <div class="mui-card">  
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                    <swiper :lunbotuList="lunbotu"></swiper>
                </div> 
            </div>
        </div>

        <!-- 商品购买区域 -->
        <div class="mui-card">
            <div class="mui-card-header">{{goodsinfo.title}}</div>
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                  <p class="price">
                    市场价：<del>￥{{goodsinfo.order_price}}</del>&nbsp;&nbsp;销售价<span class="now_price">￥{{goodsinfo.huiyuanjia}}</span>
                  </p>
                  <p>购买数量:<numbox @getcount="getSelectCount" :max="goodsinfo.order_volume"></numbox></p>
                  <p>
                      <mt-button type="primary" size="small">立即购买</mt-button>
                      <mt-button type="danger" size="small" @click="addToShopCar">加入购物车</mt-button>
                  </p>
                </div>
            </div>
        </div>

        <!-- 商品参数区域 -->
        <div class="mui-card">
            <div class="mui-card-header"></div>
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                   <p>商品货号:{{goodsinfo.inputtime}}</p>
                   <p>库存情况:{{goodsinfo.order_volume}}件</p>
                   <p>上架时间:{{goodsinfo.updatetime | dateFormat}}</p>
                </div>
            </div>
            <div class="mui-card-footer">
                <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
                <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
            </div>
        </div>
    </div>
</template>

<script>
import swiper from "../subcomponents/swiper.vue";
import numbox from "../subcomponents/goodsinfo_numbox.vue";
export default {
  data() {
    return {
      id: this.$route.params.id,
      lunbotu: [],
      goodsinfo: [],
      ballFlag: false,
      selectedCount:1
    };
  },
  created() {
    this.getLunbotu();
    this.getGoodsInfo();
  },
  methods: {
    getLunbotu() {
      this.$http
        .get(
          "https://www.minjiwang.cn/index.php?c=api&m=xcx&fun=show&id=" +
            this.id +
            "&uid=503"
        )
        .then(result => {
          this.lunbotu = result.body;
        });
    },
    getGoodsInfo() {
      this.$http
        .get(
          "https://www.minjiwang.cn/index.php?c=api&m=xcx&fun=show&id=" +
            this.id +
            "&uid=503"
        )
        .then(result => {
          this.goodsinfo = result.body;
        });
    },
    goDesc(id) {
      this.$router.push({ name: "goodsdesc", params: { id } });
    },
    goComment(id) {
      this.$router.push({ name: "goodscomment", params: { id } });
    },
    addToShopCar() {
      this.ballFlag = !this.ballFlag;
    },
    beforeEnter(el) {
      el.style.transform = "translate(0,0)";
    },
    enter(el, done) {
      el.offsetWidth;

      const ballPosition = this.$refs.ball.getBoundingClientRect();
      const badgePosition = document
        .getElementById("badge")
        .getBoundingClientRect();
      const xDist = badgePosition.left - ballPosition.left;
      const yDist = badgePosition.top - ballPosition.top;

      el.style.transform = `translate(${xDist}px,${yDist}px)`;
      el.style.transition = "all 0.5s cubic-bezier(.4,-0.3,1,.68)";
      done();
    },
    afterEnter(el) {
      this.ballFlag = !this.ballFlag;
    },
    getSelectCount(count){
        this.selectedCount=count;
        console.log(this.selectedCount);
    }
  },
  components: {
    swiper,
    numbox
  }
};
</script>

<style lang="scss" scoped>
.goodsinfo-container {
  background-color: #eee;
  overflow: hidden;

  .now_price {
    color: red;
    font-size: 16px;
    font-weight: bold;
  }
  .mui-card-footer {
    display: block;
    button {
      margin: 15px 0;
    }
  }

  .ball {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: red;
    position: absolute;
    z-index: 99;
    top: 390px;
    left: 146px;
  }
}
</style>
